efficient in writing, that the CPU becomes the limiting factor. Cassandra is highly

concurrent and uses as many CPU cores as available.

When choosing instance types with Amazon EC2 for write-heavy workloads, you

should look at instance types with at least 4 vCPUs. Although this is a good

starting point, we recommend that you test a representative workload before

settling on the instance type for production.

Planning Cassandra Clusters on AWS This section discusses how you can apply Cassandra features to AWS services to

deploy Cassandra in the most optimal and efficient way.

Planning Regions and Availability Zones The AWS Cloud Infrastructure is built on Regions and Availability Zones (AZs). 10A Region is a physical location in the world where we have multiple Availability

Zones. Availability Zones consist of one or more discrete data centers, each with